Chevrolet
Corvette ZR2 (LS6 Special Purpose Engine Package)

Why it matters

The ZR2 was the 1971 counterpart of the ZR1 package, built around the aluminum-head LS6 454 instead of the LT-1 small block. Only twelve were made, which makes it one of the rarest factory Corvette options.

How rare is it?

Six separate kinds of rarity – never combined into one number.

Each kind of rarity is rated separately and never combined.

Production

Every figure says what it counts.

Independent counts (e.g. engine and colour) are never combined into a calculated figure. Surviving examples are never presented as original production.

History

The ZR2 combined the LS6 engine, rated at 425 horsepower, with the same race-oriented package as the ZR1 (M22 gearbox, heavy-duty brakes and suspension, no radio or air conditioning). Twelve cars were built in 1971, two of them convertibles. Convertibles have sold for $962,500 and $863,500, according to the source.

Technical specifications

Engine

Transmission & drivetrain

Chassis, body & dimensions

Performance

“Not yet verified” means no source has been checked for that value yet. Nothing is estimated to fill a gap.

Sources

Each number links to the exact facts it supports.

1. 1
   C3 Corvette hub (1968-1982) Level B CorvSport

   • the ZR2 (12)

   Accessed 2026-11-12
2. 2
   Corvette Action Center – 1971 Corvette Production Numbers & Options Level C

   • 12 ZR2 packages

   Accessed 2026-11-12